Cofer, Charles Norval. Motivation: theory and research C. N. Cofer [and] M. H. Appley. - New York : Wiley, 1964 - 958 p. illus. 24 cm. Bibliography: p. 839-935. LCCN: 64013214 Subjects--Topical Terms: Motivation (Psychology) LC Class. No.: BF683 / .C6 Dewey Class. No.: 658.314 / COM 1964